Fascinating presentations from this year’s TED conferences.

Kate Harman on – The Art of Wearable Communications

Patrick Meier at TEDx Silicon Valley (July 2011) –  Crisis Mapping

WiFi From Every Lightbulb

 

Rebecca MacKinnon describes the expanding struggle for freedom and control in cyberspace.

Economics writer Tim Harford studies complex systems — and finds a surprising link among the successful ones: they were built through trial and error. In this sparkling talk from TEDGlobal 2011, he asks us to embrace our randomness and start making better mistakes.

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